Cslb Concrete C8 License Practice Test #2 Newest 2025 Exam Newest Complete 300 Questions And Correct Detailed Answers (Verified Answers)

CSLB CONCRETE C8 LICENSE PRACTICE TEST #2 NEWEST 2025 EXAM NEWEST COMPLETE 300 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) 1/3 The maximum size of the conduit or pipe shall NOT exceed _______ of the thickness of the concrete. Color Test Explanation: Rest of the above are laboratory tests. Which of the following tests for concrete is conducted at the site/field? 85 If the concrete compressive strength specified is less than 3600 psi, it has the option of being tested at 28 days and is able to accept the concrete if it attains ___________ percentage of the minimum required strength. Retarders If the admixtures are used in concrete for the purpose of delayed setting and hardening of concrete, they are called _____________? ALL ANSWERS! -Internal vibrators -Immersion vibrators -Surface vibrators Which of the following are the general types of vibrating needles that are in use? ALL OF THESE -Surface area method -Mix design based on flexural strength -Maximum destiny method Concrete proportioning is done based on the facilities available at the site. Which are the general proportioning methods used for concrete? 675 The minimum cementitious material that is required for concrete bridging deck is ______________lbs/cu yd. 310 Explanation: If the SCM are added, it can be increased to 20 pounds per each required 100 pounds of cementitious material in excess of 550 pounds per cubic yard. The amount of free water used in concrete shall not exceed ____________ pounds per cubic yard of concrete. Steel dowels If the concrete curbs are to be constructed over the existing pavement, _______________ are used to fix them to pavement. Combination of silica fume and chlorine fluoride Explanation: Blended cement is a combination of either Type || or Type V cement with any of the SCM Which of the following is NOT an example of blended cement? Control Joint Which of the following is a line at which the face of the curb meets the top of the payment? Abrasion bonding compound Explanation: Concrete curing compound and polymer bonding agent are both concrete chemicals. Which of the following is NOT used as concrete chemicals? Air entrainment admixtures The admixtures that are used in concrete to improve durability in freeze/thaw environments are ________________. 1.9 - 2.8 The fly ash which is used as SCM has the specific gravity ___________________. Screeding The leveling operation that removes lumps and hollows and provides a true and uniform concrete surface is called ______________________. 50 If the quantity of concrete is less than _____________ cubic yards, the compliance test reports are not required. Type ||| Which type of Portland cement is used when early strength is expected? ALL OF THESE -Sub grade conditions -Finishing requirements -Temperature Which of the following factor influence the positioning of the joints in a slab on grade? High tensile strength Which of the following is NOT a property of concrete? Steam Explanation: It is done by heating concrete by steam or using alternating current, so that water content in the concrete is not increased. The concrete work is done in freezing zones, it gets cured by ______________. #4 Explanation: The one which passes through sieve #4 is the fine aggregate. Coarse aggregate in concrete is the material that is retained in sieve number ____________. Pre stressing steel Explanation: If the pre stressing steel is rusted, it cannot be used since it does not meet the compliance requirements. All of the structural steel is considered satisfactory even if it is rusted, but still meets the density requirements, except ___________________. More The compressive strength of concrete when treated with a 4" cube is always ____________ than when tested with a 6" cube. Mix design Explanation: